Exhaust-steam pipeline for a steam power plant

Abstract

An exhaust steam pipeline for steam power plants includes a main steam line and at least two branch lines which are fluidly connected to respective condenser elements of the steam power plant and branch off from the main steam line at connection zones in spaced-apart relationship. The main steam line has a cross section, which decreases following each of the connection zones, and is constructed to ascend at an angle to a horizontal in flow direction of the exhaust steam.

1. An exhaust-steam pipeline for a steam power plant, comprising a main steam line carrying exhaust steam and having at least two branch lines which are fluidly connected to respective condenser elements of the steam power plant and branch off from the main steam line at connection zones in spaced-apart relationship, said main steam line having a cross section, which decreases following each of the connection zones, and being constructed to ascend at an angle to a horizontal in flow direction of the exhaust steam. 
   
   
     2. The exhaust-steam pipeline of  claim 1 , wherein the angle ranges from 5° to 60°. 
   
   
     3. The exhaust-steam pipeline of  claim 1 , wherein the angle ranges from 10° to 20°. 
   
   
     4. The exhaust-steam pipeline of  claim 1 , and further comprising a center duct, wherein the main steam line has two main steam line portions which are connected to the center duct with opposing ascent. 
   
   
     5. The exhaust-steam pipeline of  claim 1 , and further comprising a support assembly for supporting the main steam line, said support assembly having compensation means for compensating thermal length changes of the main steam line. 
   
   
     6. The exhaust-steam pipeline of  claim 5 , wherein the compensation means includes a self-aligning mount or a sliding member. 
   
   
     7. The exhaust-steam pipeline of  claim 1 , wherein at least one of the branch lines ascends slantingly at an angle relative to the main steam line in flow direction of the exhaust steam. 
   
   
     8. The exhaust-steam pipeline of  claim 1 , wherein one of the branch lines is disposed at an outer end of the main steam line and has an orientation which corresponds to an orientation of the main steam line. 
   
   
     9. The exhaust-steam pipeline of  claim 1 , wherein at least one of the branch lines is split into at least two partial lines at a connection zone. 
   
   
     10. The exhaust-steam pipeline of  claim 9 , wherein at least one of the partial lines ascends slantingly at an angle in relation to the one of the branch lines. 
   
   
     11. The exhaust-steam pipeline of  claim 1 , and further comprising a baffle plate disposed in an area of at least one of the connection zones of the branch lines for splitting the flow of exhaust steam in partial streams. 
   
   
     12. The exhaust-steam pipeline of  claim 9 , and further comprising a baffle plate disposed in an area of the connection zone for splitting the flow of exhaust steam in partial streams. 
   
   
     13. The exhaust-steam pipeline of  claim 11 , and further comprising distribution pipes connected to the branch lines in one-to-one correspondence, wherein a ratio of partial steam flows corresponds to a ratio of distribution pipes following a connection zone. 
   
   
     14. The exhaust-steam pipeline of  claim 13 , and further comprising distribution pipes connected to the partial lines of the branch line in one-to-one correspondence, wherein a ratio of partial steam flows corresponds to a ratio of distribution pipes following the connection zone.